1.
cola, Coca-Cola-type soft drink
A carbonated soft drink, typically referring to Coca-Cola or Pepsi-type beverages.
コーラ comes from English "cola" and generally refers to any cola-flavored soft drink.
Common expressions
Usage
In Japan, コーラ usually refers to Coca-Cola by default, as it is the dominant brand. When ordering at restaurants, saying コーラ is sufficient. Pepsi is specified as ペプシ. 炭酸飲料 is the general term for carbonated drinks.